Home / 84,015,999.40-125,974,232.70-43,705,215.40

Finding the Fourth Proportional to 84,015,999.40, 125,974,232.70 and 43,705,215.40

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Solution

The fourth proportional to 84,015,999.40, 125,974,232.70 and 43,705,215.40 is: 65,531,934.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,015,999.40 : 125,974,232.70 = 43,705,215.40 : x
  2. Step 2: Convert to fraction form
    84,015,999.40/125,974,232.70 = 43,705,215.40/x
  3. Step 3: Cross multiply
    84,015,999.40x = 125,974,232.70 × 43,705,215.40
  4. Step 4: Simplify right side
    84,015,999.40x = 5,505,730,975,003,224
  5. Step 5: Solve for x
    x = 5,505,730,975,003,224/84,015,999.40
  6. Step 6: Final answer
    x = 65,531,934.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.